公开(公告)号：KR100395487B1

公开(公告)日：2003-08-25

申请号：KR1020010056703

申请日：2001-09-14

Applicant: 한국전자통신연구원

Inventor： 최상호 ,  김경식 ,  임선배

IPC: H04B7/26

CPC classification number: H04W36/12

Abstract: There is provided a method for performing an inter-packet data service node (PDSN) hard handoff. The method is implemented by setting up a channel link passing through a target base station controller (T-BSC), a source base station controller (S-BSC), a source packet control function (S-PCF) and a source-PDSN (S-PDSN) by establishing a channel link between the S-BSC and the T-BSC via a mobile station center (MSC) in an active packet session mode, performing the hard handoff between the S-BSC, the T-BSC and a mobile station (MS) and transmitting or receiving user packet data exchanged between the MS and the T-BSC through the established channel link to or from the S-PDSN in case the hard handoff is completed.

Abstract translation: 提供了一种用于执行分组间数据服务节点（PDSN）硬越区切换的方法。 该方法通过建立经过目标基站控制器（T-BSC），源基站控制器（S-BSC），源分组控制功能（S-PCF）和源PDSN（ S-BSC和T-BSC之间的硬越区切换，通过在活动分组会话模式中经由移动站中心（MSC）建立S-BSC和T-BSC之间的信道链路， 移动台（MS）并且在硬切换完成的情况下通过建立的去往或来自S-PDSN的信道链路发送或接收在MS与T-BSC之间交换的用户分组数据。

公开(公告)号：KR100395486B1

公开(公告)日：2003-08-25

申请号：KR1020010056705

申请日：2001-09-14

Applicant: 한국전자통신연구원

Inventor： 최상호 ,  김경식 ,  신동진

IPC: H04B7/26

CPC classification number: H04W36/10 ,  H04W36/18 ,  H04W92/22

Abstract: There is provided a method for performing an inter-packet data service node (PDSN) soft handoff. The method is implemented by setting up a channel passing through a target base station controller (T-BSC), a source base station controller (S-BSC) and a source-PDSN (S-PDSN) by establishing a direct channel link between the S-BSC and the T-BSC in an active packet session mode, performing a handoff between the S-BSC, the T-BSC and a mobile station (MS), transmitting or receiving user packet data exchanged between the MS, and the S-BSC and the T-BSC to or from the S-PDSN through the established channel link and sending or receiving user packet data exchanged between the MS and the T-BSC to or from the S-PDSN through the established channel link when the handoff is completed.

Abstract translation: 提供了一种用于执行分组间数据服务节点（PDSN）软切换的方法。 该方法通过建立通过目标基站控制器（T-BSC），源基站控制器（S-BSC）和源-PDSN（S-PDSN）的信道，通过建立直接信道链路 S-BSC和处于活动分组会话模式的T-BSC，在S-BSC，T-BSC和移动台（MS）之间执行越区切换，发送或接收在MS和S之间交换的用户分组数据 -BSC和T-BSC通过建立的信道链路与S-PDSN或从S-PDSN接收数据，并且在越区切换时通过建立的信道链路在MS与T-BSC之间交换或者从S-PDSN交换的用户分组数据 完成了。

公开(公告)号：KR1020020051550A

公开(公告)日：2002-06-29

申请号：KR1020000080922

申请日：2000-12-22

Applicant: 한국전자통신연구원

Inventor： 김경식 ,  최상호 ,  신동진

IPC: H04B7/26

CPC classification number: H04W36/0011 ,  H04W80/04

Abstract: PURPOSE: A hard handoff method in a packet mobile communication network is provided to execute a mobile client's multi-PPP session establishment and control function for a high speed handoff in order to solve a problem generated in a handoff procedure in the third generation packet mobile communication network. CONSTITUTION: While data are being exchanged between an MC(Mobile Client) and a PDSN**(Packet Data Service Node) through a PPP session(S21), an RN*(Radio Network) sends a hard handoff request to an RNt(target radio network)(S22). After determining whether the handoff is to be executed, the RNt sends a hard handoff response to RN*(S23). The RN* informs the MC of the execution of the handoff to the RNt(S24). The MC executes a radio access procedure to the RNt(S25). At this moment, the RNt sends a session ID to a PDSNt. The PDSNt recognizes a new R-P through the session ID(S26), and establishes a PPP session with the MC(S27). After executing PPP initialization, the PDSNt sends agent advertisements to the MC(S28). The MC sends an agent solicitation to the PDSNt. At this moment, the MC generates a mobility IP registration request(S29). The PDSNt sends an AMR message containing the registration request to an AAA server(S30). In response to the AMR message, the AAA server sends an AMA message(S31). The PDSNt informs the MC of the mobility IP registration response(S32). After handoff completion, the MC notifies the RN* of it(S33). The RN* informs the PDSN** that the channel with the MC has been closed(S34), and billing is provisionally recorded in the AAA server(S35). Accordingly, the data service between the PDSNt and the MC is activated through the PPP session(S36).

Abstract translation: 目的：提供分组移动通信网络中的硬切换方法，以执行用于高速切换的移动客户端的多PPP会话建立和控制功能，以便解决第三代分组移动通信中的切换过程中产生的问题 网络。 规定：当通过PPP会话（S21）在MC（移动客户端）和PDSN **（分组数据业务节点）之间交换数据时，RN *（无线网络）向RNt（目标）发送硬切换请求 无线网络）（S22）。 在确定是否执行切换后，RNt向RN *发送硬切换响应（S23）。 RN *通知MC执行到RNt的切换（S24）。 MC向RNt执行无线接入过程（S25）。 此时，RNt向PDSNt发送会话ID。 PDSNt通过会话ID识别新的R-P（S26），并与MC建立PPP会话（S27）。 执行PPP初始化后，PDSNt向MC发送代理广告（S28）。 MC向PDSNt发送代理商招标。 此时，MC生成移动IP注册请求（S29）。 PDSNt向AAA服务器发送包含注册请求的AMR消息（S30）。 响应于AMR消息，AAA服务器发送AMA消息（S31）。 PDSNt通知MC移动IP注册响应（S32）。 切换完成后，MC通知RN *（S33）。 RN *通知PDSN **与MC关闭的通道已关闭（S34），计费临时记录在AAA服务器中（S35）。 因此，通过PPP会话激活PDSNt与MC之间的数据业务（S36）。

公开(公告)号：KR100155522B1

公开(公告)日：1998-11-16

申请号：KR1019950050514

申请日：1995-12-15

Applicant: 한국전자통신연구원

Inventor： 오현서 ,  김응배 ,  최상호 ,  박채민 ,  성진숙

IPC: H04B1/708

Abstract: 본 발명은 병렬 상관기를 이용한 대역확산 PN 코드 트랙킹장치에 관한 것으로서, 종래기술은 다경로 채널을 통과한 신호를 수신할 때 다경로의 랜덤한 시간지연으로 인한 신호의 찌그러짐 현상에 의해 수신신호의 복조시 에러를 증가시켜 전체적인 성능을 저하시켰던 문제점이 있었다.
따라서 본 발명은 수신신호를 N개의 지연 레지스터를 통과시킨 후 자체 발생된 PN 코드 타이밍과 상관값을 계산하고 적분하며, 적분된 신호를 샘플링하여 최대 상관값을 선택한다.
그리고 최대 상관값을 갖는 시점을 기준으로 모듈로 N 계수기를 리셋시키고 모듈로 N 계수기에서 생성된 클럭으로 자체 PN 코드를 발생시키는 구성으로 되어 있는 것이다.

公开(公告)号：KR100395496B1

公开(公告)日：2003-08-25

申请号：KR1020010056710

申请日：2001-09-14

Applicant: 한국전자통신연구원

Inventor： 최상호 ,  김경식 ,  신동진

IPC: H04B7/26

CPC classification number: H04W36/12 ,  H04W36/18

Abstract: There is provided a method for performing an intra-packet data service node (PDSN) soft handoff. The method is implemented by setting up a channel passing through a target base station controller (T-BSC), a source base station controller (S-BSC) and a PDSN by establishing a direct channel link between the S-BSC and the T-BSC in an active packet session mode, performing a handoff between the S-BSC, the T-BSC and a mobile station (MS), transmitting or receiving user packet data exchanged between the MS, and the S-BSC and the T-BSC to or from the PDSN through the established channel link and sending or receiving user packet data exchanged between the MS and the T-BSC to or from the PDSN through the established channel link when the handoff is completed.

Abstract translation: 提供了一种用于执行分组内数据服务节点（PDSN）软切换的方法。 通过在S-BSC和T-BSC之间建立直接信道链路，建立经过目标基站控制器（T-BSC），源基站控制器（S-BSC）和PDSN的信道来实现该方法。 BSC处于活动分组会话模式，在S-BSC，T-BSC和移动台（MS）之间执行越区切换，发送或接收在MS与S-BSC和T-BSC之间交换的用户分组数据 当切换完成时，通过建立的信道链路向PDSN发送或从PDSN发送或从PDSN发送或接收在MS与T-BSC之间交换的用户分组数据。

公开(公告)号：KR100388064B1

公开(公告)日：2003-06-18

申请号：KR1020010016416

申请日：2001-03-29

Applicant: 한국전자통신연구원

Inventor： 최상호 ,  김경식

IPC: H04L12/66

Abstract: PURPOSE: A wireless access gateway device for accessing an IP packet-based core network in an IMT-2000 mobile communication network is provided to differentiate voices based on lines from voices based on packets, and to integrate various wireless Internet packet services into an IP-based packet service, thereby reducing service cost and implementing an efficient packet data service. CONSTITUTION: The first gateway performs a wireless data service with an IP-based core network and more than a 3 or a 4 generation wireless access network. The second gateway performs a wireless data service with the IP-based core network and 2/2.5 generation wireless access networks. The wireless data services are carried out by an IP-based packet service. A protocol conversion, a protocol interworking, and an interface are performed through an API(Application Program Interface), to carry out functions of the first and the second gateway. The first gateway comprises as follows. The first access unit mounts a protocol stack corresponding to the wireless access network for accessing more than 3 generation wireless access networks. The first access gateway functional unit mounts a gateway protocol stack for communicating with the IP-based core network, by exchanging information packets with the first access unit or the second gateway.

Abstract translation: 目的：提供一种用于访问IMT-2000移动通信网络中基于IP分组的核心网络的无线接入网关设备，以基于分组的语音来区分语音，并且将各种无线互联网分组服务集成到IP- 从而降低服务成本并实现高效的分组数据服务。 组成：第一个网关使用基于IP的核心网络和超过3或4代无线接入网络执行无线数据服务。 第二个网关利用基于IP的核心网络和2 / 2.5代无线接入网络执行无线数据服务。 无线数据服务由基于IP的分组服务执行。 通过API（应用程序接口）执行协议转换，协议互通和接口，以执行第一和第二网关的功能。 第一个网关包括如下。 第一接入单元安装与无线接入网络对应的协议栈，用于接入3代以上的无线接入网络。 第一接入网关功能单元通过与第一接入单元或第二网关交换信息分组来安装用于与基于IP的核心网进行通信的网关协议栈。

公开(公告)号：KR1020030023942A

公开(公告)日：2003-03-26

申请号：KR1020010056710

申请日：2001-09-14

Applicant: 한국전자통신연구원

Inventor： 최상호 ,  김경식 ,  신동진

IPC: H04B7/26

CPC classification number: H04W36/12 ,  H04W36/18

Abstract: PURPOSE: A method for performing an intra-PDSN(Packet Data Serving Node) high-speed soft hand-off through a communication between BSCs(Base Station Controllers) is provided to replace a hard hand-off from an S(Source)-BSC to a T(Target)-BSC with a soft hand-off, perform the soft hand-off, maintain the S-BSC as an anchor, and offer a packet data service in an active mode. CONSTITUTION: An S-BSC(103) transmits an idle forward frame to a T-BSC(107)(S207). The T-BSC(107) transmits the idle forward frame as soon as the T-BSC(107) acquires a synchronization, and prepares for transmitting an idle reverse frame(S209). The T-BSC(107) transmits the idle reverse frame to the S-BSC(103) as soon as the T-BSC(107) receives the idle forward frame from the S-BSC(103)(S211). The T-BSC(107) transmits an A7 hand-off request acknowledgement message to the S-BSC(103) for informing that the addition of the cell is successfully achieved(S213). If the S-BSC(103) acquires the synchronization of the T-BSC(107) and an A3 traffic sub-channel, the T-BSC(107) transmits an A3 traffic channel status message(S215). If the S-BSC(103) transmits a hand-off direction message to an MS(101) and adds a new cell in an active set(S217), the MS(101) transmits an MS acknowledgement message for answering to the hand-off direction message and transmits a hand-off completion message for informing the successful result of the hand-off direction message process(S221). The S-BSC(103) transmits a BS(Base Station) acknowledgement order to the MS(101)(S223), and transmits a hand-off performed message to an MSC(Mobile Switching Center)(111).

Abstract translation: 目的：提供通过BSC（基站控制器）之间的通信来执行PDSN（分组数据服务节点）高速软切换的方法，以从S（源）-BSC 到具有软切换的T（目标）-BSC，执行软切换，将S-BSC维持为锚点，并以活动模式提供分组数据服务。 构成：S-BSC（103）将空闲前向帧发送到T-BSC（107）（S207）。 一旦T-BSC（107）获取同步并准备发送空闲的反向帧，T-BSC（107）就发送空闲转发帧（S209）。 一旦T-BSC（107）接收到来自S-BSC（103）的空闲转发帧，T-BSC（107）将空闲的反向帧发送到S-BSC（103）（S211）。 T-BSC（107）向S-BSC（103）发送A7切换请求确认消息，用于通知小区的添加被成功地实现（S213）。 如果S-BSC（103）获取T-BSC（107）和A3业务子信道的同步，则T-BSC（107）发送A3业务信道状态消息（S215）。 如果S-BSC（103）向MS（101）发送切换方向消息，并在活动集中添加新小区（S217），则MS（101）发送用于应答手机的MS确认消息， 并且发送用于通知切换方向消息处理的成功结果的切换完成消息（S221）。 S-BSC（103）向MS（101）发送BS（基站）确认命令（S223），并向MSC（移动交换中心）发送切换执行的消息（111）。

公开(公告)号：KR1020030023938A

公开(公告)日：2003-03-26

申请号：KR1020010056703

申请日：2001-09-14

Applicant: 한국전자통신연구원

Inventor： 최상호 ,  김경식 ,  임선배

IPC: H04B7/26

CPC classification number: H04W36/12

Abstract: PURPOSE: A method for performing an inter-PDSN(Packet Data Serving Node) high-speed hard hand-off through a link setup between BSCs(Base Station Controllers) through an MSC(Mobile Switching Center) is provided to perform a communication through the link setup between the BSCs through the MSC in an active packet session mode in an IMT-2000(International Mobile Telecommunications-2000) wireless packet mobile communication network and offer a packet data service in a high speed without losing data. CONSTITUTION: An MSC(111) selects a T(Target)-BSC(107) having an available wireless channel from a cell list, inserts a PANID(Previous Access Network ID) and a hard hand-off indicator into a hand-off request message, and transmits the hand-off request message to the T-BSC(107)(S203). The T-BSC(107) receives the hand-off request message, assigns a suitable idle wireless resource, and sets an ATM(Asynchronous Transfer Mode)-based link channel between an S(Source)-BSC(103) and the T-BSC(107) through the MSC(111)(S205). The T-BSC(107) transmits a hand-off request acknowledgement message including wireless channel information to the MS(111) so that an MS(101) performs a tuning to the corresponding wireless channel and starts a T9 timer to wait for receiving a signal transmitted from the MS(101)(S207). The MSC(111) receives the hand-off request acknowledgement message, prepares the switching of a call from the S-BSC(105) to the T-BSC(107), and transmits a hand-off command including wireless channel information received from the T-BSC(107) to the S-BSC(103)(S209). The S-BSC(103) transmits a GHDM(General Hand-off Direction Message) or a UHDM(Universal Hand-off Direction Message) to the MS(101), and starts a Twaitho timer for admitting that the MS(101) is returned to the S-BSC(103)(S211). The MS(101) transmits an MS acknowledgement order message to the S-BSC(103)(S213). The S-BSC(103) transmits a hand-off commenced message to the MSC(111) for informing that the MS(101) is instructed to be moved to a channel of the T-BSC(107)(S215). If the MS(101) acquires synchronization using a reverse traffic channel frame or preamble data and completes a hard hand-off procedure, the MS(101) transmits a hand-off completion message to the T-BSC(107)(S217). The T-BSC(107) receives the hand-off completion message and transmits a BSC acknowledgement order message to the MS(S219).

Abstract translation: 目的：提供通过MSC（移动交换中心）通过BSC（基站控制器）之间的链路建立来执行跨PDSN（分组数据服务节点）高速硬切换的方法，以通过 在IMT-2000（国际移动电信-2000）无线分组移动通信网络中以活动分组会话模式通过MSC在BSC之间建立链路建立，并且高速提供分组数据业务而不丢失数据。 构成：MSC（111）从小区列表中选择具有可用无线信道的T（目标）-BSC（107），将PANID（先前接入网络ID）和硬越区切换指示符插入越区切换请求 消息，并将切换请求消息发送给T-BSC（107）（S203）。 T-BSC（107）接收到切换请求消息，分配合适的空闲无线资源，并在S（源）-BSC（103）与T-网络（103）之间设置基于ATM（异步传输模式）的链路信道， BSC（107）通过MSC（111）（S205）。 T-BSC（107）向MS（111）发送包括无线信道信息的切换请求确认消息，使得MS（101）对相应的无线信道执行调谐，并启动T9定时器以等待接收 MS（101）发送的信号（S207）。 MSC（111）接收切换请求确认消息，准备从S-BSC（105）到T-BSC（107）的呼叫切换，并发送包括从 T-BSC（107）到S-BSC（103）（S209）。 S-BSC（103）向MS（101）发送GHDM（通用切换指示消息）或UHDM（通用切换指示消息），并且启动Twaitho定时器，以允许MS（101） 返回到S-BSC（103）（S211）。 MS（101）向S-BSC（103）发送MS确认命令消息（S213）。 S-BSC（103）向MSC（111）发送切换开始的消息，用于通知MS（101）被指示移动到T-BSC（107）的信道（S215）。 如果MS（101）使用反向业务信道帧或前导码数据获取同步，并且完成硬切换过程，则MS（101）向T-BSC（107）发送切换完成消息（S217）。 T-BSC（107）接收到切换完成消息，并向MS发送BSC确认命令消息（S219）。

公开(公告)号：KR1019970056175A

公开(公告)日：1997-07-31

申请号：KR1019950050514

申请日：1995-12-15

Applicant: 한국전자통신연구원

Inventor： 오현서 ,  김응배 ,  최상호 ,  박채민 ,  성진숙

IPC: H04B1/708

Abstract: 본 발명은 병렬 상관기를 이용한 대역확산 PN 코드 트랙킹장치에 관한 것으로서, 종래기술은 다경로 채널을 통과한 신호를 수신할 때 다경로의 랜덤한 시간지연으로 인한 신호의 찌그러짐 현상에 의해 수신신호의 복조시 에러를 증가시켜 전체적인 성능을 저하시켰던 문제점이 있었다.
따라서 본 발명은 수신신호를 N개의 지연 레지스터를 통과시킨 후 자체 발생된 PN 코드 타이밍과 상관값을 계산하고 적분하며, 적분된 신호를 샘플링하여 최대 상관값을 선택한다.
그리고 최대 상관값을 갖는 시점을 기준으로 모듈로 N 계수기를 리셋시키고 모듈로 N 계수기에서 생성된 클럭으로 자체 PN 코드를 발생시키는 구성으로 되어 있는 것이다.

公开(公告)号：KR1020030023966A

公开(公告)日：2003-03-26

申请号：KR1020010056737

申请日：2001-09-14

Applicant: 한국전자통신연구원

Inventor： 최상호 ,  김경식 ,  임선배

IPC: H04B7/26

CPC classification number: H04W36/12

Abstract: PURPOSE: A method for performing high-speed handoff through setting a link between BSCs(Base Station Controllers) by passing an MSC(Mobile Switching Center) in a packet data service node is provided to furnish communication through setting the link the BSCs passing the MSC in case of an active packet session mode, so as to furnish a high-speed packet data service without data losses. CONSTITUTION: In an active packet session mode, a channel link passing an MSC(111) is set between an S-BSC(Source BSC)(103) and a T-BSC(Target BSC)(107), to set a channel passing the T-BSC(107), the S-BSC(103), an S-PCF(Source Packet Control Function)(105) and a PDSN(Packet Data Service Node)(121). Hard handoff is performed between the S-BSC(103), the T-BSC(107) and an MS(Mobile Station)(101). If the hard handoff is completed, user packet data exchanged between the MS(101) and the T-BSC(107) are transmitted to the PDSN(121) through the set channel link or received therefrom. In a dormant packet session mode, a channel link is set between the T-BSC(107), a T-PCF(Target PCF)(109) and the PDSN(121). The channel link set between the S-BSC(103), the S-PCF(105) and the PDSN(121) is released. And the channel link between the S-BSC(103) and the MSC(111) is released.

Abstract translation: 目的：提供通过在分组数据服务节点中通过MSC（移动交换中心）设置BSC（基站控制器）之间的链路来执行高速切换的方法，以通过设置通过MSC的BSC来提供通信 在活动分组会话模式的情况下，以提供高速分组数据业务而没有数据丢失。 构成：在活动分组会话模式中，通过MSC（111）的信道链路被设置在S-BSC（源BSC）（103）和T-BSC（目标BSC）（107）之间，以设置信道通过 T-BSC（107），S-BSC（103），S-PCF（源分组控制功能）（105）和PDSN（分组数据业务节点）（121）。 在S-BSC（103），T-BSC（107）和MS（移动站）（101）之间执行硬切换。 如果硬切换完成，则在MS（101）和T-BSC（107）之间交换的用户分组数据通过设置的信道链路发送到PDSN（121）或从其接收。 在休眠分组会话模式中，在T-BSC（107），T-PCF（目标PCF）（109）和PDSN（121）之间设置信道链路。 在S-BSC（103），S-PCF（105）和PDSN（121）之间设置的信道链路被释放。 并且释放S-BSC（103）和MSC（111）之间的信道链路。